CADMIUM, ZINC AND TOTAL MERCURY LEVELS IN THE TISSUES OF SEVERAL FISH SPECIES FROM LA-PLATA RIVER ESTUARY, ARGENTINA
CADMIUM, ZINC AND TOTAL MERCURY LEVELS IN THE TISSUES OF SEVERAL FISH SPECIES FROM LA-PLATA RIVER ESTUARY, ARGENTINA
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DOI：
10.1007/bf00549133
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发表时间：
1993-04-01
影响因子：
3
通讯作者：
MORENO, VJ
中科院分区：
文献类型：
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作者：
MARCOVECCHIO, JE;MORENO, VJ
对阿根廷拉普拉塔河口桑博龙邦湾 15 种鱼类组织中的重金属（镉、锌和总汞）浓度进行了调查。肝脏似乎是积累镉和锌的主要器官，而肝脏和肌肉也表现出类似的积累汞的能力。尽管已确定浓度较低，但所分析的三种金属的生物累积过程已得到验证。所研究金属的生物放大过程在此环境中尚未得到验证。鲻鱼的金属浓度最高，颗粒物和沉积物——与其营养和生态习性密切相关——似乎是该物种金属的主要来源。 Micropogonias Furnieri 和 Mugil liza 都被认为是未来桑博隆邦湾重金属监测项目的可能指示物种。考虑到目前的结果，拉普拉塔河口的该地区具有未受污染的环境特征。
A survey of the concentrations of heavy metals - cadmium, zinc and total mercury - in the tissues of fifteen fish species from Samborombon Bay, La Plata river estuary, in Argentina, has been carried out. Liver appeared to be the main organ accumulating cadmium and zinc, while both liver and muscle showed a similar ability for accumulating mercury. The bioaccumulation process was verified for the three metals analyzed, even though low concentrations have been determined. The biomagnification process of the metals studied was not verified in this environment. The highest metal concentrations were recorded in Mugil liza, and particulate matter and sediments - which are closely related to its trophic and ecological habits - seemed to be the main source of metals for this species. Both Micropogonias furnieri and Mugil liza were recognized as possible indicator species for future monitoring programmes for heavy metals in Samborombon Bay. Considering the present results, this area of La Plata river estuary is characterized as a non-polluted environment.